17x20x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Water Heaters Chillers phosphorus and potassium into a

phosphorus and potassium into a true solution

Spectrum  PhysioSpec Indoor™ Broad R4

CO2: 300-2500PPM

saving you money on utilities and costly maintenance

17x20x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack Water Heaters Chillers phosphorus and potassium into aNordic Pure pleated AC air filters are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home or office. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, baking flour, mold spores and other contaminants are removed. Our filter media prevents the growth of bacteria or mold, resulting in a much healthier living space.